13545453545 has 32 divisors (see below), whose sum is σ = 19173762720. Its totient is φ = 9089740800.

The previous prime is 13545453539. The next prime is 13545453553. The reversal of 13545453545 is 54535454531.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 7782062656 + 5763390889 = 88216^2 + 75917^2 .

It is not a de Polignac number, because 13545453545 - 2¹⁰ = 13545452521 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13545453496 and 13545453505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179306 + ... + 243395.

It is an arithmetic number, because the mean of its divisors is an integer number (599180085).

Almost surely, 2^13545453545 is an apocalyptic number.

It is an amenable number.

13545453545 is a deficient number, since it is larger than the sum of its proper divisors (5628309175).

13545453545 is a wasteful number, since it uses less digits than its factorization.

13545453545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422765.

The product of its digits is 1800000, while the sum is 44.

The spelling of 13545453545 in words is "thirteen billion, five hundred forty-five million, four hundred fifty-three thousand, five hundred forty-five".